Anonymous - 2002-10-04

I've installed PhpWiki 1.2.2 on my site (with a MySQL db); the wiki works well, but I can't log in as Administrator! I've edited the admin.php file (adding the admin. name and password) but every time I try to open the page admin.php the following message appears:

Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.

If I leave the strings of the admin. name and password empty, the message will be:

Define admin. name and password (or something similar).
Can anybody help me? (I'm new to phpwiki)

Thanks
Giorgio